REPORT ON UPPER PALEOZOIC FOSSILS FROM CHINA. 315 
Geinitzella chinensis Girty. 
Plate 28, Figures 9-14. 
Geinitzella chinensis GirTy, 1907, Proc. U. S. Nat. Mus., vol. XxxmII, p. 42. 
The growth of this species is dendroid, specimens occurring in long cylindrical 
trunks, from which in some instances spring smaller branches. All the specimens 
examined are fragmentary, the largest having a length of 110 mm. ‘They vary 
much in point of size. The largest yet noted has a diameter of 17 mm., but the 
average is nearly 15 mm. Insome specimens low monticules, more or less distinctly 
elongated in a transverse direction, form a noticeable feature, which may have been 
present in all. The mature region, where the cells had a horizontal direction, 
measures 4 mm. in a large example. 
In thin sections the species shows the usual structural variation where different 
stages of development are examined. From 7 to 8 cells occur in a linear distance 
of 2mm. ‘The acanthopores are large, and vary greatly in number and appearance 
in sections made at different points of the same zoarium. In longitudinal section 
a few scattered diaphragms occur just before the cells thicken their walls and bend 
into a horizontal direction. 
This species is closely related to Geinitzella columnaris Schlotheim, as identified 
by Waagen and Wentzel in India, but it hardly seems that the Chinese form can be 
immediately placed with that species. Waagen and Wentzel state that G. columnaris 
rarely attains a size of 5 mm. and that a diameter of but 2 mm. is often met with. 
The Chinese form is thus seen to be at least three times as large. So far as observed 
also, it is never incrusting, a mode of growth which the Indian form is said to exhibit. 
In thin sections, however, the two species are extremely similar. One distinction 
which appears to exist is that the cells are a little larger in the Chinese form. Waagen 
and Wentzel do not state this character in their description, and certain discrepan- 
cies which appear to exist between different degrees of magnification, said to be 
represented by their figures, make it impossible to obtain altogether reliable meas- 
urements from that source. Apparently G. columnaris presents nine or ten cells 
in 2mm. ‘The presence or absence of diaphragms is not stated in the text of their 
description, but none are represented in their figures. The Chinese form certainly 
possesses diaphragms, and it seems likely that they will also be found in that from 
India. 
With the differences above noted it seems inadvisable to refer the Chinese form 
to G. columnaris, though it is possible that it will prove no more than a variety, better 
marked, however, than any of the varieties recognized by Waagen and Wentzel. 
Locality and Horizon.—Pennsylvanian (Wu-shan limestone); near Ta-ning- 
hién, East Ssi-ch’uan (stations 1 and 4). 
Batostomella meekana Girty. 
Plate 29, Figures 6-8. 
Batostomella meekana Girty, 1907, Proc. U. S. Nat. Mus., vol. XxxuIl, p. 43. 
This form has not been found free, and the following description has been drawn 
up from thin sections. It evidently occurs as cylindrical, probably branching, 
stems, of which some grew to a diameter of 4 mm., while others are only about 
3 mm. thick. 
The cells are slightly oval in outline, one diameter being a little greater than 
the other. In the mature region they are separated by intervals about equal to 
one-half their own diameter, and number about five in 2 mm. longitudinally. The 
acanthopore-like granules are relatively few, and as a very prevalent rule occur in 
